Dendrochronological links

WSL-Birmensdorf tree-ring data 2000Dr. Fritz Schweingruber and colleagues at WSL-Birmensdorf (Swiss Federal Institute for Forest, Snow, and Landscape Research) have recently made the largest data contribution in the history of The International Tree-Ring Data Bank. The data set contains nearly 500 sites from around the world, including ring width and wood density measurements, and site chronologies